Terahertz controller with variable functions
A controller and terahertz technology, which is applied in the terahertz field, can solve the problems of restricting the application and development of terahertz technology, cannot be adjusted, and has a single function, and achieves the effects of superior performance, easy processing and flexible control.
Inactive Publication Date: 2022-01-11
CHINA JILIANG UNIV
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Problems solved by technology
Generally speaking, these reported terahertz functional devices have a single function, and once the structural size parameters are optimized, the performance of the device is fixed and cannot be adjusted, which seriously restricts the application and development of terahertz technology. The terahertz controller is of great significance
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Embodiment 1
[0027] In this embodiment, the structure and the shape of each part of a function-variable terahertz controller are as described above, so details are not repeated here. Select the number of unit structures N=3, and the function-variable terahertz controller of 3×3 structural units arranged periodically is as follows: image 3 shown. The specific parameters of each component are as follows:
[0028] The front view of the periodically arranged 3×3 unit structure 7 is a square, and the side length of the square is 100 μm; the thickness of the top combined pattern 11 is 1.5 μm, and the material is tungsten disulfide; the thickness of the silicon dielectric layer 2 is 25 μm; the tungsten disulfide film 3 The thickness is 2.0 μm; the thickness of the silicon dioxide layer 4 is 29 μm; the thickness of the metal grating 8 is 0.5 μm, and the material is gold, and the width of the grating is 28 μm; the thickness of the metal base plate 5 is 0.5 μm, and the material is gold. The inner...
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Abstract
The invention discloses a terahertz controller with variable functions. The controller comprises a terahertz wave input end, a reflected terahertz wave output end and N * N unit structures, wherein N is a natural number; the N * N unit structures are periodically arranged on a plane perpendicular to the input direction of terahertz waves, and each unit structure comprises a top layer combination pattern, a silicon dielectric layer, a tungsten disulfide thin film, a metal grating, a silicon dioxide dielectric layer and a metal bottom plate, wherein the top-layer combined pattern is located above the silicon dielectric layer and is composed of a four-notch tungsten disulfide circular ring and a cross-shaped hollow tungsten disulfide disc. The terahertz controller with the variable function has the advantages of being simple in structure, excellent in performance, flexible in control, adjustable in function, convenient to machine and manufacture and the like, and has wide application prospects in various terahertz systems.
Description
technical field [0001] The invention relates to the technical field of terahertz, in particular to a terahertz controller with variable functions. Background technique [0002] Terahertz wave refers to electromagnetic waves with a frequency of 0.1~10THz and a wavelength of 3000~30μm. It coincides with millimeter waves in the long wave band, and coincides with infrared rays in the short wave band. Terahertz waves occupy a very special place in the electromagnetic wave spectrum. s position. Terahertz technology has broad application prospects in high-speed communication, biological imaging, spectral detection and other fields. In recent years, various terahertz functional devices such as terahertz filters, terahertz wave switches, and terahertz wave modulators have been reported. Generally speaking, these reported terahertz functional devices have a single function, and once the structural size parameters are optimized, the device performance is fixed and cannot be adjusted,...
Claims
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IPC IPC(8): H01Q1/38H01Q17/00
CPCH01Q1/38H01Q17/007
Inventor 李九生程杰
Owner CHINA JILIANG UNIV